Function IsHDMIAudio

rEFIt_UEFI/Platform/hda.cpp:120–152

BOOLEAN EFIAPI IsHDMIAudio(EFI_HANDLE PciDevHandle)
{
  EFI_STATUS          Status;
  EFI_PCI_IO_PROTOCOL *PciIo;
  UINTN               Segment;
  UINTN               Bus;
  UINTN               Device;
  UINTN               Function;
  UINTN               Index;

  // get device PciIo protocol
  Status = gBS->OpenProtocol(PciDevHandle, &gEfiPciIoProtocolGuid, (VOID **)&PciIo, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);
  if (EFI_ERROR(Status)) {
    return FALSE;
  }

  // get device location
  Status = PciIo->GetLocation (PciIo, &Segment, &Bus, &Device, &Function);
  if (EFI_ERROR(Status)) {
    return FALSE;
  }

  // iterate over all GFX devices and check for sibling
  for (Index = 0; Index < NGFX; Index++) {
    if (gGraphics[Index].Segment == Segment
        && gGraphics[Index].Bus == Bus
        && gGraphics[Index].Device == Device) {
      return TRUE;
    }
  }

  return FALSE;
}

BOOLEAN setup_hda_devprop(EFI_PCI_IO_PROTOCOL *PciIo, pci_dt_t *hda_dev, const XString8& OSVersion)
{